Module: Traits::Association::Join

Included in:
Traits::Association
Defined in:
lib/traits/association/join.rb

Instance Method Summary collapse

Instance Method Details

#from_key ⇒ Object 



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# File 'lib/traits/association/join.rb', line 19

def from_key
  from_table[from_key_name]
end

#from_key_name ⇒ Object 



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# File 'lib/traits/association/join.rb', line 23

def from_key_name
  if polymorphic?
    reflection.foreign_key.to_sym

  elsif through?
    through_association.from_key_name

  elsif features.try(:translates_with_globalize?)
    nil

  elsif belongs_to?
    reflection.foreign_key.to_sym

  end || reflection.active_record_primary_key.to_sym
end

#from_table ⇒ Object 



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# File 'lib/traits/association/join.rb', line 7

def from_table
  from.arel
end

#from_table_alias ⇒ Object 



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# File 'lib/traits/association/join.rb', line 15

def from_table_alias
  from_table.table_alias.try(:to_sym)
end

#from_table_name ⇒ Object 



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# File 'lib/traits/association/join.rb', line 11

def from_table_name
  from_table.name.to_sym
end

#to_hash ⇒ Object 



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# File 'lib/traits/association/join.rb', line 79

def to_hash
  super.merge!(
    from_table_name:  from_table_name,
    from_table_alias: from_table_alias,
    from_key_name:    from_key_name,

    to_table_name:    to_table_name,
    to_table_alias:   to_table_alias,
    to_key_name:      to_key_name
  )
end

#to_key ⇒ Object 



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# File 'lib/traits/association/join.rb', line 61

def to_key
  to_table.try(:[], to_key_name)
end

#to_key_name ⇒ Object 



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# File 'lib/traits/association/join.rb', line 65

def to_key_name
  unless polymorphic?
    if through?
      source_association.to_key_name

    elsif belongs_to? || has_and_belongs_to_many?
      reflection.association_primary_key.to_sym

    else
      reflection.foreign_key.to_sym
    end
  end
end

#to_table ⇒ Object 



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# File 'lib/traits/association/join.rb', line 39

def to_table
  unless polymorphic?
    table = to.arel.clone
    if self_to_self?
      table.table_alias = "#{plural_name}_#{from.table_name}"
    end
    table
  end
end

#to_table_alias ⇒ Object 



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# File 'lib/traits/association/join.rb', line 55

def to_table_alias
  unless polymorphic?
    to_table.table_alias.try(:to_sym)
  end
end

#to_table_name ⇒ Object 



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# File 'lib/traits/association/join.rb', line 49

def to_table_name
  unless polymorphic?
    to_table.name.to_sym
  end
end